*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
    background: #333;
}
#canvas{
    width: 700px;
    height: 700px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    filter: drop-shadow(0 0 10px #ff6348);
}

